Declension table of virodhana

Masculine	Singular	Dual	Plural
Nominative	virodhanaḥ	virodhanau	virodhanāḥ
Vocative	virodhana	virodhanau	virodhanāḥ
Accusative	virodhanam	virodhanau	virodhanān
Instrumental	virodhanena	virodhanābhyām	virodhanaiḥ virodhanebhiḥ
Dative	virodhanāya	virodhanābhyām	virodhanebhyaḥ
Ablative	virodhanāt	virodhanābhyām	virodhanebhyaḥ
Genitive	virodhanasya	virodhanayoḥ	virodhanānām
Locative	virodhane	virodhanayoḥ	virodhaneṣu

Compound virodhana -

Adverb -virodhanam -virodhanāt